From ce6a3c0dd7ff245bf3b2694c2325cebbdaaccd5b Mon Sep 17 00:00:00 2001
From: Andrew Taylor <a.taylor280@gmial.com>
Date: Mon, 17 Oct 2016 20:29:52 +0100
Subject: [PATCH 1/2] Issue 5769 dev mode varaible

---
 doc/articles/scripts.md    | 2 ++
 src/Composer/Installer.php | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/doc/articles/scripts.md b/doc/articles/scripts.md
index f394f28e9..9b350c614 100644
--- a/doc/articles/scripts.md
+++ b/doc/articles/scripts.md
@@ -150,6 +150,8 @@ class MyClass
 }
 ```
 
+**Note:** During composer install / update, a `COMPOSER_DEV_MODE` php environment variable is set. If composer install / update was run with the `--no-dev option`, this variable will be set to 0, otherwise it will be set to 1. This exposes the mode in which the install / update was run, to any post-install / update commands.
+
 ## Event classes
 
 When an event is fired, your PHP callback receives as first argument a
diff --git a/src/Composer/Installer.php b/src/Composer/Installer.php
index 49e82f06c..b1ac40834 100644
--- a/src/Composer/Installer.php
+++ b/src/Composer/Installer.php
@@ -292,6 +292,9 @@ class Installer
             }
 
             if ($this->runScripts) {
+                $devMode = (int) $this->devMode;
+                putenv("COMPOSER_DEV_MODE=$devMode");
+
                 // dispatch post event
                 $eventName = $this->update ? ScriptEvents::POST_UPDATE_CMD : ScriptEvents::POST_INSTALL_CMD;
                 $this->eventDispatcher->dispatchScript($eventName, $this->devMode);

From 235b1cca81f959fcaebd52222e1ec8e7268b9698 Mon Sep 17 00:00:00 2001
From: Rob Bast <rob.bast@gmail.com>
Date: Wed, 19 Oct 2016 08:40:06 +0200
Subject: [PATCH 2/2] wordwrap and minor rephrasing

---
 doc/articles/scripts.md | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/doc/articles/scripts.md b/doc/articles/scripts.md
index 9b350c614..66d84b8c2 100644
--- a/doc/articles/scripts.md
+++ b/doc/articles/scripts.md
@@ -22,15 +22,19 @@ Composer fires the following named events during its execution process:
 
 ### Command Events
 
-- **pre-install-cmd**: occurs before the `install` command is executed with a lock file present.
-- **post-install-cmd**: occurs after the `install` command has been executed with a lock file present.
-- **pre-update-cmd**: occurs before the `update` command is executed, or before the `install` command is executed without a lock file present.
-- **post-update-cmd**: occurs after the `update` command has been executed, or after the `install` command has been executed without a lock file present.
+- **pre-install-cmd**: occurs before the `install` command is executed with a
+  lock file present.
+- **post-install-cmd**: occurs after the `install` command has been executed
+  with a lock file present.
+- **pre-update-cmd**: occurs before the `update` command is executed, or before
+  the `install` command is executed without a lock file present.
+- **post-update-cmd**: occurs after the `update` command has been executed, or
+  after the `install` command has been executed without a lock file present.
 - **post-status-cmd**: occurs after the `status` command has been executed.
 - **pre-archive-cmd**: occurs before the `archive` command is executed.
 - **post-archive-cmd**: occurs after the `archive` command has been executed.
-- **pre-autoload-dump**: occurs before the autoloader is dumped, either
-  during `install`/`update`, or via the `dump-autoload` command.
+- **pre-autoload-dump**: occurs before the autoloader is dumped, either during
+  `install`/`update`, or via the `dump-autoload` command.
 - **post-autoload-dump**: occurs after the autoloader has been dumped, either
   during `install`/`update`, or via the `dump-autoload` command.
 - **post-root-package-install**: occurs after the root package has been
@@ -150,7 +154,10 @@ class MyClass
 }
 ```
 
-**Note:** During composer install / update, a `COMPOSER_DEV_MODE` php environment variable is set. If composer install / update was run with the `--no-dev option`, this variable will be set to 0, otherwise it will be set to 1. This exposes the mode in which the install / update was run, to any post-install / update commands.
+**Note:** During a composer install or update process, a variable named
+`COMPOSER_DEV_MODE` will be added to the environment. If the command was run
+with the `--no-dev` flag, this variable will be set to 0, otherwise it will be
+set to 1.
 
 ## Event classes